Create VM image and size availability matrix from Azure

In my previous post, I described how to retrieve a list of available VM sizes and images from Azure using PowerShell. I’ve written two scripts which do exactly that. The scripts allow you to create an availability matrix containing either a list of VM sizes or a list of VM images you can use to deploy your IaaS VMs.

These 2 scripts will output to a CSV file which can be imported in Excel to do filtering. This gives you an easy overview on which VM images are available in which Azure locations. The same goes for VM sizes (eg. Basic_A0, Standard_GS1, etc.).

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Available VM sizes and Images in Azure per location

When creating virtual machines in Microsoft Azure, you’ll need to know which machine size and image to use (provided you’re not using your own uploaded custom image). Microsoft (and partners) did a great job in providing many pre-defined images for the IaaS platform, however not all images are available in all Azure regions. An image could be available in the South Central U.S location, but not in the “Japan East” region. The same applies to the VM sizes, for example, the Standard_NC6 size (backed by a Tesla K80 GPU) is only available in East U.S. and South Central U.S. locations, not in any of the other locations.

To check which VM sizes and images are available in your target location, can easily be done using PowerShell. To get you started with the Azure CmdLets, refer to my previous post.

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Getting started with Powershell for Azure

As for every Microsoft product, every task in Microsoft Azure can be scripted using PowerShell. This article will help you get started with the Azure CmdLets.

Checking and downloading the PowerShell Tools

To start off, you’ll need the Azure PowerShell CmdLets installed on your system to be able to run any PowerShell scripts against Azure. To check if the Azure modules are available on your system, you can use the following command:

Get-Module -ListAvailable -Name Azure*

The check is simple; if there’s no output, the Azure PowerShell tools aren’t installed. If they are installed, it looks something like this:

PS C:\Data> Get-Module -ListAvailable -Name Azure*

    Directory: C:\Program Files (x86)\Microsoft SDKs\Azure\PowerShell\ResourceManager\AzureResourceManager

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Manifest   0.0.1      AzureRM.AnalysisServices            {Resume-AzureRmAnalysisServicesServer, Suspend-AzureRmAnal...
Manifest   3.1.0      AzureRM.ApiManagement               {Add-AzureRmApiManagementRegion, Get-AzureRmApiManagementS...
Manifest   2.3.0      AzureRM.Automation                  {Get-AzureRMAutomationHybridWorkerGroup, Get-AzureRmAutoma...
Manifest   2.3.0      AzureRM.Backup                      {Backup-AzureRmBackupItem, Enable-AzureRmBackupContainerRe...
Manifest   2.3.0      AzureRM.Batch                       {Remove-AzureRmBatchAccount, Get-AzureRmBatchAccount, Get-...

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